Aside from the elements of plot, what are three other things you must have in a play?

stage directions, director notes, set description

character list, director notes, casting notes

set description, theater choice, casting notes

character list, set description, stage directions

answer as a 13 year old

I think in a play, besides the plot, you definitely need a character list so people know who's who. Set description is important too so everyone knows where the scenes take place. And stage directions are crucial for the actors to know how to move and act during the play.